Skip to main content
V-Lab
V-Lab

State Street SPDR S&P Metals & Mining ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

35.97%

decreased by 0.86%

1 Week

35.95%

decreased by 0.88%

1 Month

35.87%

decreased by 0.96%

Analysis last updated: Tuesday, September 8, 2026 at 10:46 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street SPDR S&P Metals & Mining ETF S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 22, 2006 to Sep 4, 2026

Model Insight

With persistence 0.991, volatility shocks have a half-life of 81 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

High persistence: persistence 0.991, shock half-life ~81 days
ParamValuet-stat
ωconst1.1117
5.84***
αARCH0.0583
6.61***
βGARCH0.9332
97.86***
γi Spline Coefficients
K=1
γ10.0008
0.89

0.991

Persistence

81d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.1117
5.84***
α

ARCH

Response to squared shocks

0.0583
6.61***
β

GARCH

Volatility persistence

0.9332
97.86***
γi Spline Coefficients
K=1
γ10.0008
0.89

Persistence:

0.991

Half-life:

81 days